Apparatus for packaging books



p 29, 1970 1 H. LEVI" 3,530,643

APPARATUS FOR PACKAGING BOOKS Filed May 23, 1968 9 Sheets-Sheet 1 mvsmoa#444? 4. L'V/ ATTORNEY Sept. 29, 1970 a. L. LEVI 3,530,643

APPARATUS FOR PACKAGING BOOKS Filed May 23, 1968 9 Sheets-Sheet 3 4; f0l :2; 5 52' a mvmon Hill/S A. 4514 BY r R E se trzs), 1970.

% APPARATUS FOR 0mm sooxs 'Filed May 23, 1968 9 Sheets-Sheet 4 INVENTORAW/vs A.

H. L. LEVI 3,530,643

Sept. 29, 1970 H. L. LEVI APPARATUS FOR PACKAGING BOOKS 9 Sheets-Sheet 5Filed May 23, 1968 ATTORNEYS H. L. LEVI APPARATUS FOR PACKAGING BOOKSSept. 29, 1970 Filed May 23, 1968 9 Sheets-Sheet I ATTORNEY H. L. LEVIAPPARATUS FOR PACKAGING BOOKS Sept. 29; 1970 9- Sheets-Shet 7 Filed May23, 1968 INVENT OR 646W? A. 45/// ATTORNEYS H. L. LEVI APPARATUS FORPACKAGING BOOKS Sept. 29, 1970 9 Sheets-Sheet 9 w 92 Z w IGJ -64 Hz 4 rH4 3 W H United States Patent 3,530,643 APPARATUS FOR PACKAGING BOOKSHans L. Levi, New York, N.Y. (63 Mountain View Road, Demarest, NJ.07627) Filed May 23, 1968, Ser. No. 731,471 Int. Cl. B65b 11/18, 25/14,61/00 U.S. Cl. 53-183 12 Claims ABSTRACT OF THE DISCLOSURE Thisinvention relates generally to automatic wrapping or packaging machines.More specifically it relates to book packaging machinery, and comprisesan automatic machine for individually enclosing books within thespecific mailing carton that is described in applicants US. Pat. No.3,368,735.

A principal object of the present invention is to provide an automaticmachine for enclosing books within individual mailing cartons whereinthe operation is accomplished by high-speed, mass production methods.

Another object of the present invention is to provide a book packagingmachine that is designed to specifically use the improved mailing cartondescribed in applicants earlier patent which was developed to protectparticularly the corners and ends of the book against rough handlingduring shipment.

Another object is to provide a book packaging machine that is readilyadjustable so as to accommodate books of various dimensions in anydirection.

Yet another object is to provide a book packaging machine wherein thereis a hopper or magazine for the carton blanks and wherein a feedingmechanism allows the blanks to be stripped therefrom one at a time withsubsequent drop of blanks so to obtain a better grip thereof.

Yet another object is to provide a book packaging machine wherein thereis a feeding bar of flattened arrow shape which abuts with acorresponding configurated edge on the blank so as to provide improvedguidance by the bar to the blank.

Yet a further object is to provide a book packaging machine wherein thearrow configured edge of the blank will result in increased strength bycutting across the flutes of the corrugated material.

Yet a further object is to provide a book packaging machine whichincludes forming devices to permit continuous forming of the blankwithin a short space so as to form rolled-in cushions at each side ofthe blank; the forming devices each being comprised of a funnel shapedform consisting of two sections, the final section of which isinterchangeable for size adjustment.

Yet a further object is to provide a book packaging machine whichincorporates a carton closing mechanism 3,530,643 Patented Sept. 29,1970 which includes a spring loaded lever that turns over a portion ofthe blank so to fold the same around a book, and wherein the leverretracts out of the way after having thus performed its turning service.

Yet a further object is to provide a book packaging machine whichincorporates a pair of conveyor chains in transverse directions to eachother and along which the carton travels.

Yet a further object is to provide a book packaging machine whichincorporates an upper and lower flap closing mechanism.

Yet a further object is to provide a book packaging machineincorporating a hold-down device which is adjustable to conform to thethickness of a book and its carton.

Other objects are to provide a book packaging machine which is simple indesign, inexpensive to manufacture, rugged in construction, easy to useand eificient in operation.

These and other objects will be readily evident upon a study of thefollowing specification and the accompanying drawings wherein:

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a cross sectional view taken on line 22 of FIG. 1, showing apart of the drive mechanism.

FIG. 3 is a cross sectional view taken on line 3-3 of FIG. 2 showing theremainder of the drive mechanism.

FIG. 4 is a cross sectional view taken on line 4-4 of FIG. 1 showing theadjustable mechanism.

FIG. 5 is a cross sectional view taken on line 5-5 of FIG. 4 showing aninitial step in the operation of the machine.

FIG. 6 is a perspective view of a carton blank shown in alignment forbeing engaged by a pusher bar.

FIG. 7 is a similar view thereof showing the pusher bar engaging theblank and pushing the same.

FIG. 8 is a perspective view of the forming mechanism shown rolling up acushion at each side of the blank.

FIG. 9 is a view in the direction of line 9-9 of FIG. 8, shown with thecarton blank in a further advanced position.

FIG. 10 is a fragmentary perspective view of the blank after havingpassed through the forming mechanism.

FIG. 11 is a cross sectional view taken on line 11-11 of FIG. 1 showingthe book feeding mechanism.

FIG. 12 is a fragmentary perspective view thereof shown partly brokenaway to show the hidden structure.

FIG. 13 is an enlarged cross sectional view taken on line 13-13 of FIG.12.

FIG. 14 is a perspective view of one of the units of the carton closingmechanism.

FIG. 15 is a rear perspective view thereof.

FIG. 16 is a perspective view of the carton shown partly formed and witha book in position thereupon; the carton having arrived at the cartonclosing mechanism.

FIG. 17 is a cross sectional view taken on line 17-17 of FIG. 16.

FIG. 18 is a view similar to FIG. 17 showing a subsequent step in thecarton forming operation.

FIG. 19 is a cross-sectional view taken on line 19-19 of FIG. 18 showingthe carton tab deflecting mechanism.

FIG. 20 is a view similar to FIG. 18 showing a subsequent step on thecycle of operation.

FIG. 21 is a perspective view of the carton lower and upper flap closingmechanisms.

FIG. 22 is a cross-sectional view taken on line .22-22 of FIG. 21showing the hold down mechanism.

FIG. 23 is a cross-sectional view taken on line 2323 of FIG. 21 showingthe lower flap closing mechanism in operative use.

FIG. 24 is a cross-sectional view taken on line 2424 of FIG. 21 showingthe adhesive applying mechanism in operative use.

FIG. 25 is a cross-sectional view taken on line 25-25 of FIG. 21 showingthe upper flap closing mechanism in operative use.

FIG. 26 is a perspective view of the carton shown fully closed andcontaining a single book therewithin, and

FIG. 27 is a detail view of the spray valve opening mechanism.

Referring now to the drawings in detail, and more particularly to FIGS.1 to 4, the reference numeral 30 represents an automatic machine forenclosing books within individual mailing cartons according to thepresent invention wherein there is an L-shaped housing 31 comprised of aframework 32 upon the outer side of which, a number of enclosing panels33 are secured to form an enclosure for a central compartment 34therewithin for containing a drive mechanism 35 for driving the machine.

THE DRIVE MECHANISM The drive mechanism 35, shown in FIGS. 2 and 3,includes an electric motor 36 mounted upon a platform 37, the motorbeing connected by an electric extension cord 38 to a plug 39 receivablewithin an electric outlet receptacle for delivering power to the motor.The motor drives through a gear reduction 40 having an output shaft 41,the rotational speed of which is selectively controlled by a speedadjustment control knob 42 externally positioned of the housing.

The output shaft 41 has a sprocket 43 secured thereto, the sprocket 43driving an endless chain 44 having a plurality of equally spaced apartpushers 45 secured thereto. The chain 44 extends around a pair ofsprockets 46 and 47 mounted upon shafts 48 and 49 respectively,supported transversely at opposite ends of the housing section 50 whichtogether with the housing section 51 comprise the L-shaped housing 31.

The housing section 50 has a top wall 52 having a longitudinal centralopening 53 between opposite ends, and a horizontal portion 54 of thechain 44 extending between the sprockets 46 and 47 is fitted within theopening 53 so that the pushers 45 thereof extend above the level of thetop wall 52 while traveling between sprockets 46 and 47. While thesprocket 46 may be mounted rotatably free on the shaft 48, the sprocket47 is rigidly affixed to shaft 49, the shaft 49 being rotatablysupported within bearings 55.

A bevel gear 56 secured to shaft 49, engages a bevel 57 afiixed on ashaft 58 thus extending the drive mechanism from section 50 to thesection 51 of the L-shaped housing.

A pair of sprockets 59 secured on shaft 58 are connected by endlesschains 60 to a pair of sprockets 61 on a shaft 62 at the opposite end ofhousing section 51, the chains carrying a plurality of equally spacedapart pushers 63 secured therebetween the two chains. The above chains44 and 50 drive all the mechanisms described here below which packagethe books within the mailing cartons.

THE CARTON LENGTH ADJUSTMENT MECHANISM In view of the fact that booksare made in various sizes, the present machine is designed toaccommodate the packaging thereof regardless of book size in length,width and thickness. The book length and the resultant carton lengthrequire that all the mechanisms on the housing section 51 be sidewardadjustable. This is accomplished by mounting the mechanisms upon a pairof longitudinally-extending, parallel platforms 64 which are adjustableapart by a mechanism 65 shown in FIG. 2. This mechanism includesparallel, spaced apart, transverse screws 66 journalled at theiropposite ends within bearings 67 secured on the housing. Each screw isprovided with a left hand thread 68 at one end, and a right hand thread69 at its opposite end. Each platform 64 is mounted upon a longitudinalchannel 70 having a pair of threaded openings 71 engages with one of thethreads on each screw 66. A sprocket 72 is fastened on each screw 66 andan endless chain 73 extends around the two sprockets 66. One of thescrews has a cross sectionally square terminal end 74 that protrudesoutwardly of the housing and is attached to a hand crank 75 havingeccentric handle 76. Manual rotation of handle 76 will move theplatforms adjustably apart or together, thus the distance betweenseparated parts of various parts of various mechanisms mounted on theplatform 64.

THE CARTON BLANK FEEDING STATION At one end of the housing sections 51,a carton blank feeding station 77 includes a hopper 78 comprised ofright and left hopper or magazine sections 79 and 80. Each hoppersection is comprised of a bottom wall 81, side wall 82 secured along itslower edge to the bottom wall, and a front wall 83 secured to the sidewall, there being a narrow slot 84 provided between the lower edge 85 ofthe front wall and the bottom wall so to allow a lower most of a stackof carton blanks 86 placed upon the hopper to feed forwardlytherethrough. The hopper sections are secured upon the platforms 64 bymeans of bolts 87.

As shown in FIGS. 5 and 6, the pusher 63 includes a V-shaped undercutforward edge 88 that is receivable within a V-shaped notch 89 of thecarton blank rear edge. The V-shaped edge 88 of the pusher has athickness that is greater than the thickness of the carton blank. It isto be noted that the edge 88 is downwardly rearwardly inclined so toforce the carton blank into a lower corner 90 formed between edge 88 anda forwardly extending lip 91 on the pusher, the lip being downwardlyarched at its forward edge so as to guide the blank into the corner.Until the pusher 63 engages the blank 86, the stack of blanks aresupported upon spaced pads 64' upon the platforms 64 and thereby raisedto permit the lowermost carton to be started without interference withthe carton thereabove and then lets it drop to get full grip.

FORMING MECHANISM Adjacent the blank feeding station, a formingmechanism -92, comprised of right and left units 93 and 94 is mountedupon the respective platforms 64. Each unit is composed of a preformingbracket 95 of scroll configuration and a funnel 96, as shown in FIG. 8,this funnel 96 comprising a final forming element for the blank andbeing interchangeable with other funnels for different sizes of thefinished form of the blank. The carton blank 86, as illustrated in FIG.7 has laterally extending wings 97 each having parallel score lines 98which become bends 99 while passing through the forming mechanisms, asshown in FIG. 8, so as to form rectangular tubular cushions 100 betweenwhich a book may be placed for protection, as shown in FIG. 10.

BOOK FEEDING MECHANISM Adjacent the forming mechanism, there is a bookfeeding mechanism 101 comprised of right and left units 102 and 103 toform a chute 104 down which books 105 may Slld. As shown in FIGS. 11 to13, each book feeding unit includes a side wall 106 and an inclinedbottom wall 107 having lower end 108 from which books are dischargedupon the carton blank as it passes therebelow. A stop mechanism 109momentarily halts the lower most book on the chute 104 until the cartonblank is properly positioned therebelow. The stop mechanism 109comprises a lever 110 centrally pivotable about a pivot shaft 111supported on a bracket 112 on the underside of the chute units 102 and103, the lever having a hook 113 at one end for engaging the leadingedge 114 of the lower most book, and the opposite end of the levercarrying a slidably adjustable cam 115 selectively securable on thelever by a set screw 116, the cam comprising a block that is upwardlylifted by the pusher as it passes therebelow, thus causing the oppositeend of the lever to be lowered and thereby disengaging the hook from theleading edge 114 of the book and allowing the book to drop upon theblank 86. After the pusher 63 passes the cam, the hook returns to stopthe next book from discharging off the chute 104. The shaft 111 has anintegral sideward arm 117 to the end of which one end of a tensionspring 118 is secured, the spring being connected at its other end tothe bracket 112 thus aiding the return of the hook 113 upwardly. The arm117 is limited in upward travel by a stop pin 119 secured on the bracket112, as shown in FIG. 13. This mechanical actuation of the book releasemay be effected by electric means, such as the application of a solenoidor similar means.

CARTON CLOSING MECHANISM A carton closing mechanism 120, shown in FIGS.14 through is located adjacent the book feeding mechanism, the mechanism120 comprising the final mechanism upon the housing section 51. Thecarton closing mechanism comprises right and left units 121 and 122secured upon the platforms, 64, each unit including an upstanding wall123, extending through the platform. A lever 124 is pivoted at one endon a pin 125 secured to a portion of the wall below the platform 64, thelever extending normally upwardly through an opening 126 in the platformso that the upper end of the lever intercepts the carton blank 86 as itis moved along the platform. A tension spring 127 secured at one end toa pin 128 mounted on the wall 123 is secured at its other end on a spur129 integrally formed on the lever so to cause the lever to be normallyurged upward.

As the blank 86 enters the closing mechanism, the front portion thereofnot being weighted by the book, accordingly is bent along score line130, the front portion moving upwardly upon the levers 124, as shown inFIGS. 16 and 17. Further travel of the platform causes the upwardly bentforward portion of the blank to engage rollers 212 mounted upon pins 132secured in the walls 123. As shown in FIG. 18, this causes the upwardbent portion of the blank to bend along a score line 133, thus bendingthe blank about the leading edge of the book. As the blank is continuedto be advanced, the portion thereof carrying the book is moved over thedepressed lever 124, which due to the pressure of rollers 131 retractdownwardly below the level of the platform as shown in FIG. 18. As theblank is further advanced, the remainder of the upward portion thereofis drawn under the rollers which push it adjacent the upper side of thebook, as shown in FIG. 20. However, before this last movement isaccomplished, the tab 134 on each side must be positioned so to properlyenter the slots 135, as indicated in FIG. 16. This is accomplished by abutton 136 on the side of wall 123, the tab coming alongside the buttonjust at the moment when a corner of the tab is ready to enter the slot.As shown in FIG. 19, the button 136 deflects the tab sidewardly so to beperfectly aligned with the slot. As the carton blank, now generallyforming a carton 86a, advances further under the rollers, the rollersforce the tabs into the slots, as shown in FIG. 20. The complete cartonclosing mechanisms 120 are adjustable in height by hand nut 120' andscrews 120" extending between the platforms 64 and internally threadedside tabs 120a.

The carton is now urged by the pusher 63 off the housing section 51 andupon the section 50 which extends in a direction transversely to thesection 51.

It is to be noted that the blank 86 with its rolled side wing cushionswas guided toward the carton closing mechanism by passing within achannel 137 formed between each platform 64 and a hold down bar 138thereabove. On leaving the mechanism 120, the carton 86a is retained ina closed position by the tabs 134, and between guides 138 and no longerrequiring hold down bars to maintain the cushions.

FLAP CLOSING AND SEALING MECHANISMS After carton 86a, containing thebook, leaves the section 51 it slides, as indicated by arrow 139, uponthe platform 52 of the section 50, the leading end of the cartonabutting against adjustable backstop 140. In this position, it islocated above the feed chain 44, as shown in FIG. 21 and is ready forbeing pushed in a lateral direction by a pusher 45 on the chain 44, asindicated by arrow 141.

The carton thus first arrives at a lower flap closing station 142wherein there is a spiral-configurated, bottomflap closing bar 143 whichcomprises an elongated flat bar that is twisted 90 between opposite endsso that the leading end is secured in horizontal position by a screw 144secured to the platform 52, thus allowing the horizontal lower closingflap 145 of the carton to move thereupon. As the carton continues toadvance due to pusher 45, the flap 145 is gradually pivoted by thetwisted bar 143 toward a vertical or closed position, as shown in FIG.23. The opposite, vertical end of the bar 143 is secured to a bracket146 fastened upon the platform.

The lower flap thus closed, the carton is moved alongside an adhesiveapplying mechanism 147 shown in FIGS. 21 and 24. It comprises a sprayjet 148 which directs a spray of adhesive 149 to the underside ofsidewardly extending upper closing flap 149, as shown in FIG. 24. Thejet may be automatically opened by the carton 86a as it passes by. Onesuggested automatic device for this shown in FIG. 27 wherein an arm 150extending into the path of the carton is actuated thereby so to open avalve in a pipe 151 communicating with an adhesive reservoir 152 withinthe compartment 34. Compressed air is delivered through a pipe 154 toreservoir 152 so to force the adhesive out of the spray jet. This isonly a suggested one of any type automatic adhesive spray mechanismswhich would be here adaptable. Instead of the adhesive system, atuck-flap mechanism can be used to lock the upper flap in place.

After passing the adhesive applying mechanism 147, the carton 86a thenarrives at an upper flap closing station 155 wherein there is a spiralconfiguration, upper flap closing bar 156 which comprises an elongatedflat bar that is twisted 90 between opposite ends so that the leadingend is secured in horizontal position on a bracket 157 fastened upon theplatform, thus allowing the horizontal upper closing flap 158 of thecarton to move beneath the horizontal end. As the carton continues toadvance, the flap 159 is gradually pivoted by the twisted bar 156upwardly toward a vertical or closed position as shown in FIG. 25. Theadhesive 149' is thus brought against the flap 145, thereby securing thetwo flaps together in a locked position. Thus, the trailing end of thebar 156 is vertical and is secured to a bracket 159 fixed upon theplatform 52.

As shown in FIGS. 21 and 22, a hold down device 160 is employed for thepurpose of maintaining the carton in a compact unit while the adhesiveis setting, the hold down device comprising a fiat horizontal panel 161that bears against the upper side of the carton. The panel is verticallyadjustable so to accommodate various thicknesses of books and theirenclosing cartons. This adjustment is accomplished by means of a pair ofL-shaped levers 162 centrally pivotable about pins 163 secured on posts164 stationarily mounted on the platform. One end of the levers isattached pilvotally free on. pins 165 supported on brackets 166 mountedupon the panel 161, while the opposite end of the levers is attachedpivotally free on pins 167 supported on a horizontal bar 168. One end ofthe bar 168 has a threaded extension 168 received through a clearanceopening 169 in an extension 164' upon one of the posts 164 a threadednut 170 engaging the threaded extension on each side of the opening 169,thus locking the panel at a selected elevation.

The backstop 140 extends across the entire length of the housing section50 and is sidewardly adjustable to accommodate cartons with differentsizes of books. A lug 171 at each end of the backstop 140 has a slot 172receiving a screw 173 secured in the platform 52 to provide for sidewardadjustment of the backstop 140.

Thus, structure has been shown to accommodate book cartons varied inlength, width and height.

It is to be further noted that a door 174 may be provided on the section50 to gain access to the adhesive reservoir 152 for refilling purposes.Another door 176 on the end of section 50 permits access to service themotor 36 and its associate member.

OPERATION In operative use, the machine after being first adjusted forcarton size in width, length and thickness, is then made ready byloading mailing carton blanks upon the hopper 78, placing a quantity ofbooks upon the feeding mechanism 101, and filling the reservoir 152 withadhesive. A motor switch 177 is then turned on causing the drive whainsin each section to travel. The lowermost blank is withdrawn from thehopper and pushed through the forming mechanism so to form cushions ateach side. The blank then advances below the book feeding station when abook is deposited thereupon. The blank and the book advance to thecarton closing mechanism 120 where the carton is folded over the top ofthe book and side tabs 134 are engaged within side slots 135. The cartonthus closed advances to the lower flap closing bar 143 where the lowerflap 145 is folded over then adhesive 149 is applied to the lower sideof the upper flap 149' which is then folded down against the foldedlower flap thus sealing them together and completing the book packagingoperation. The finished package is discharged from the machine by beingmoved between adjustable backstop 140 and a stationary bracket 178.

While various changes may be made in the detail construction, it shallbe understood that such changes will be within the spirit and scope ofthe present invention as is defined by the appended claims.

What is claimed is:

1. An automatic packaging machine for enclosing a fiat book or similarlyshaped article in a carton, comprising in combination, a horizontalsupport, a series of stations on said support for forming a flat cartonblank into a carton, a drive mechanism in said support arranged to movea carton blank past said stations in succession, a first one of saidstations comprising a hopper for supporting a stack of fiat cartonblanks and for feeding one carton blank at a time from said stack, eachof said carton blanks being generally rectangular in form with a firstflap portion at one end, a pair of oppositely extending lateral wingformed with tab receiving slots and parallel core line, a cover portionhaving laterally extending tabs, and a second flap portion at the otherend of the carton blank; a second one of said stations disposed toreceive a flat carton blank fed from the first station, said secondstation comprising cushion forming means including a pair of brackets ofscroll configuration for partially folding both wings of the cartonblank on said score lines, and a pair of funnels for finally forming thepartially folded wings respectively into two cushions of rectangulartabular form, a third one of said stations comprising means fordepositing an article to be enclosed in a carton upon a carton blankbetween the tubular cushions, a fourth one of said stations comprisingmeans for folding down said cover portion of the carton blank over thecushions to partially enclose said article,

a fifth one of said stations comprising means for turning up the firstflap portion under the folded doiwn cover portion, a sixth one of saidstations comprising means for turning down the second flap portionadjacent to the turned up first flap portion, and a seventh one of saidstations comprising means for holding the folded carton blank incompressed position enclosing said article While the two folded flapportions are adhered to each other.

2. An automatic packaging machine as defined in claim 1, furthercomprising means disposed between the fifth and sixth stations forapplying an adhesive to the underside of said second flap portion.

3. An automatic packaging machine as defined in claim 2, wherein saidfourth station further includes means for folding said tabs andinserting same in said slots in the folded Wings.

4. An automatic packaging machine as defined in claim 1, wherein saiddrive mechanism comprises a pair of endless chain drives powered by acommon electric motor, each chain drive carrying a series of spacedapart pushers, each chain drive being mounted around spaced sprocketswithin said support, said support having openings through which saidpushers extend for engaging and moving a carton blank along said seriesof stations.

5. An automatic packaging machine as defined in claim 4, wherein saidpushers are fiat arrow-shaped members with undercut leading edges forengaging a carton blank and moving the same along said series ofstations.

6. An automatic packaging machine as defined in claim 1, wherein saidsupport comprises a pair of horizontal parallel platforms, and whereinthe hopper, cushion forming means, means for depositing said article onthe carton blank, and means for folding down the cover portion eachcomprise a pair of adjustable, separate units each of which is mountedon one of the platforms, and means engaging the platforms for adjustablyspacing the platforms apart to accommodate carton blanks of differentsizes.

7. An automatic packaging machine as defined in claim 1, wherein saidhopper comprises two opposite halves each having an upstanding side walland front wall, said side wall having a lower edge secured to a base onsaid support, said front wall having an opening between a lower edgethereof and said base to allow passage therethrough of a lowermostcarton blank of said stack.

8. An automatic packaging machine as defined in claim 1, wherein themeans for depositing said article on the carton blank comprises twofeeding mechanisms each including a side wall adjacent to an inclinedbottom wall, said bottom wall having a lower end for dischargingtherefrom an article placed on said mechanisms; and an arrestingmechanism disposed for momentarily halting the discharge of said articleuntil a carton blank is in proper alignment below said feedingmechanisms.

9. An automatic packaging mechanism as defined in claim 1, wherein themeans for folding down the cover portion of the carton blank comprisestwo opposing units, each unit comprising a vertical wall having a leverpivoted at one end on a pin mounted on said wall, a free end of saidlever extending upwardly against spring bias to intercept a travel pathof a certain blank, and a sidewardly projecting roller mounted on a pinin said wall for folding backward and downward said cover portion of theblank.

10. An automatic packaging mechanism as defined in claim 9, furthercomprising a button on said wall for engaging and deflecting a tab onsaid blank to engage in a slot in one of the folded wings.

11. An automatic packaging mechanism as defined in claim 1, wherein themeans for turning up the first flap portion comprises an elongated bartwisted ninety degrees along its length so that a horizontal end thereofengages said first fiap portion while it is in horizontal position andpivots the same to vertical closed position while the carton blank ismoved alongside said bar.

9 10 12. An automatic packaging mechanism as defined in 3,383,825 5/1968Titehenal et a] 53230 X claim 1, wherein the means for turning down thesecond 3,396,508 8/1968 Dorfman 53209 X flap portion comprises anelongated bar twisted ninety 3,445,983 5/1969 Stevens 53-209 X degreesalong its length to engage said second flap portion while it is inhorizontal position to pivot the same to TRAVIS MCGEHEE Primary Examinervertical position adjacent to the turned up first flap portion. 5

' N. ABRAMS, Assistant Examiner References Cited UNITED STATES PATENTSUS. Cl. X.R.

2,719,392 10/1955 Rowland et a1 53 -209 X 10 53209,387,389 3,196,5887/1965 'Chidsey 53 32

